Locking-head for stanchions.



A: w. RNUTSON. LOCKING HEAD FOR STANCHIONS.

APPLICATION FILED JULY 3.1916.

Patented Feb. 20, 1917.

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A. W. KNUTSON. LOCKING HEAD FOR STANCHIONS. APPLICATION FILED JULY 8, 191a.

Patented Feb. 20, 1917.

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J J B {X 5 a 5 5 7 A. w. KNUTSON LOCKING HEAD FOR STANCHIONS. APPLICATION FILED JULY 8, I916.

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Patented Feb. 20, 191?.

ALFRED W. KNUTSON, OF GALESBURG, ILLINOIS, ASSIGNOR TO ROWE MANUFACTURING- CO., OF GALESBURG, ILLINOIS, A CORPORATION OF ILLINOIS.

LOOKING-HEAD FOR STANCHIONS.

Specification of Letters Patent.

Patented Feb. 29, 1917.

Application filed July 8, 1916. Serial No. 108,211.

To all whom it may concern:

Be it known that I, ALFRED WV. KNUTsoN, a citizen of the United States, and resident of Galesburg, in the county'of Knox and State of Illinois have invented a new and useful Locking-Head for Stanchions, of which the following is a specification.

The invention relates to means for securing together the separable upper ends of stanchions the lower ends of which are pivotally connected.

The nature of the invention is such that it will be more readily understood by reference to the accompanying drawings and the following description, but it must be understood that the drawings show and the description sets forth only that particular embodiment which I at present prefer, and that the details are subject to much modification without departing from the prin ciples and novel features of the invention defined in the claims.

One of the objects of the invention is to provide a lock which may with ease and facility be loosed by one hand of the operator, but which is proof against accidental loosening or unlocking.

Another object is to so construct and position portions of the locking devices that they act as guides for the relatively movable member as it approaches the relatively fixed member, to which the'locking devices are secured.

A further object is to provide a double or co-acting lock either member of which will effectively hold the stanchion arms from separation but in which, nevertheless, it is necessary to simultaneously operate. both members in order to separate or disconnect said arms.

Numerous minor objects will be pointed out or evident as the nature of the invention is further disclosed.

In the accompanying drawings which show a preferred embodiment of the invention:

Figure 1 is a front elevation showing the device as in operation;

Fig. 1 an enlarged detail of the clip which engages the transverse rail of the stall;

Fig. 1", an enlarged detail of the guideyoke for holding the disengaged stanchionarm against the stall-post;

Fig. 2, a vertical central section taken substantially in the plane of the line 2-2 in Fig. 3;

Fig. 3, a top plan;

Fig. 1, a section, in Fig. 2;

Fig. 5, an end view, seen as though looking at the right hand end of Fig. 3;

Fig. 6, a perspective of the head proper, seen from what may be termed the front end;

Fig. 7 a perspective of one of the lockhandles; and

Fig. 8, a transverse section, taken in the line 88 in Fig. 6.

Considering the drawings in detail, and referring to each element and, where necessary, to each part thereof by a distinguishing numeral, 2 indicates a cement bed; 3, a curb thereon; 41, 1, front stall posts embedded in the cement; 5, 5, anchors; 6, the stanchion-supporting rail; and 7, 7 clips for uniting the rail to the standards. All these taken in the line 1-4:

may be of any suitable construction and ar-- rangement.

8 indicates a clip embracing the rail 6. 9 designates a plate connecting its legs, and 10, 10, indicate nuts for locking the parts 8 and 9 together and firmly on the rail. 11 indicates a chain-link, and 12 a clevis. These also may be of any suitable construction.

13 designates an anchor; 141 an eye engaged therewith; 15 a chain-link; 16 a clevis; and 17 a pin engaging the ends of the clevis 16 and pivotally connecting the lower end of the relatively fixed arm 18 to the lower end of the swinging arm 19 of the stanchion.

20 designates a stanchion-head connected to the clevis 12 by a pin 21. 22, 22 indicate rivets by which the head is fixed to the arm 18, a channel 23 receiving the web member of the T-shaped arm and the head thereof bearing against the flanges 24 of the head. The channel 23 is continuous throughout the length of the head. Its cross sectional out line may be changed to correspond with the cross-sectional outline of the stanchion-arms 18 and 19, which, it may be well to here state, is selective and not confined to the Te iron herein shown and described. This, it is to be understood, extends to the locking end of the arm 19." The edge of each flange 24 is provided with a pair of wings 25 for preventing injury to the hand of the operator in manipulating the handles.

V shapedguide-handle 35,

' each seated on a The front end portions of the head are spaced apart and are united by spaced guide-portions 26 the forward opposed edgesof'which are flared outward to provide a mouth 27." Each portion 26 is provided with a boss 28 for a purpose presently'd escribed. 29, 29 designate flanges at the upper portion, and30, 30 designate flanges at the lower portion of the forward endofthe head, the front edges of the latter flared. outward to provide a mouth 31. Pivoted in apertures 32 in the head is a pair ofcoacting locking handles 31 wh ch servev also as guides for the approaching arm 19. Each piece has a semi-circularly a central portion provided with a spring-receiving recess 33 and apivot aperture 36, the rear end of each piece being provided with a latch or lock-point 33, these being arranged one at the upper and at the lower edge of the re spective pieces whereby one overlies the other. 37, 37 indicate the pivot pins. 38, 38 designate expansion springs, one end of boss 28 and the other end in a recess 33.

i like members 42 To close and operator hasonly to move the free end of the arm 19 between the guide-handles 35 and into the months 27 and 31, for these will all coact in guiding it into the channel 01' passage 23. As it moves onward its front end will overcome the resistance of the springs 38 and will force apart the lockpoints 33, as indicated in Fig. 41-, these and the other forward portions of the lock members 34 working in the transversely arranged slot -15 in the head 20. When the arm 19 has moved sufliciently far the springs will act tothrow the lock points 33 into the notch 39, across the channel 23 and shoulder 40, thus effectively locking the arms 18' and 19 to each other.

To release 'or unlock the arm 19 the operator will necessarily grasp and draw to ward each other both handle-portions 35, for While it is true that each lock-point 33 is independent of the other, and that either would operate and lock the arm even though the other were removed, or though it were broken, nevertheless both points must be withdrawn in order to release the arm 19, for both points cross the channel 23 and lie across the shoulder 40.

I am aware that double locks are not, broadly considered, new in this art, but I know of none which are operated. by spaced. handles or the like, both of which require simultaneous operation in order to release the locking mechanism, thus insuring that no accidental rubbing against or movement of the releasing or unlocking device or (h vices will cause the lock members to disengage. And I know of none wherein the handles, or wherein any other portions of the locking or the unlocking mechanism, serve as guides for the stanchion-arm as it is being moved toward locking position. Nor do I know of any in which the front end of the head is provided with mouths of the nature of the mouths 27 and-31, which also serve as guides.

It will be very clear that it is not essential to use a T-shaped stanchion arm or one having any particular cross section. And it will be as clear that the shape of the way or channel 23 should conform to the cross sectional shape of the stanchion arms.

I comprehend the word channel as used herein as being sufficiently inclusive to mean any passage, channel, way, or openlng adapted to receive the free end of the movable stanchion arm. And it is not essential that the passage extend throughout the length of the head, for the arm 18 may be secured to it in any other suitable manner, depending mainly upon the outline of its cross section.

Having thus described the nature of my invention I claim as new and desire to secure by Letters Patent the following, to-wit: v i 1. The combination with coacting stanchion-arms, of a slotted head secured to one of them, and opposed locking-handles pivoted in said head, the other arm adapted to beheld in closed position by said handles and the handles serving to guide the last recited arm into the slot in said head.

2. The combination with coacting stanchion-arms, of a head secured to one of them, and a pair of coaeting locking members pivoted in said head, each member having a handle portion adapted to guide one of the stanchion-arms into the head.

3. In combination, a head having a channel, a stanchion-arm to which said head is secured, a movable stanchion-arm one end of which is adapted to pass into said channel, and a pair of divergent stanchion-arm guiding handles pivetally connected with said head, operating through a slot therein, crossing said channel, and each adapted to engage and lock the movable stanchion arm in said head.

4. In combination, a head having a channel and a flared mouth, and having also a transverse slot, a stanchion-arm to which it is secured, a movable stanchion-arm one end of which is adaptedto pass into said channel, and a pair of locking handles pivoted in said head, operating in said head, crossing said channel and both engaging the movable-arm, said flared mouth and both of said handles acting as guides for directing the movable arm into said channel.

5. In combination, a slotted head, a stanchion-arm to which the head is secured, a movable stanchion-arm adapted to pass into the slot in said head, and oppositely arranged locking elements for holding the last recited arm in engagement with said head, each locking element including a portion adapted to guide said movable arm into said head.

6. In combination, a head having a trans verse slot, a stanchion-arm to which the head is secured, a movable stanchion-arm having near one of its ends a cutaway portion whereby a shoulder is provided, and a plurality of locking elements movable through. said slot, crossing each other, and adapted to engage said shoulder.

7. In combination, a head having a transverse slot, a stanchion-arm to which the head is secured, a movable stanchion-arm having near one of its ends a cutaway portion whereby a shoulder is provided, and

locking elements pivoted to said head andmovable through said slot, one of them over lying the other, and adapted to engage said shoulder.

S. In combination, a head, a stanchion-arm to which it is secured, a movable stanchionarin adapted to enter an opening in said head, and locking elements having handle extensions, said extensions adapted to guide the movable stanchion-arm into the head,

and said locking elements adapted to lock it therein.

9. In combination, a head having a narrow, slot-like vertically arranged channel, a stanchion-arm T-shaped in cross section, its leg seated in said channel, a stanchion-arm pivotally connected at its lower end to the one recited, and means for locking its upper end in said head.

10. In combination, a head having a narrow, vertically arranged channel and having on its lower surface oppositely directed flanges, a stanchion arm .T-shaped in crosssection, its leg seated in said channel and its head in contact with said flanges, means for securing-the head to said arm, a stan- Gopies of this patent may be obtained for five cents each,

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chion-arm pivotally connected at one end to the arm above recited, and means for look-- ing its other end in said head.

11. In a stanchion, a head, a stanchionarm to which it is secured, a stanchion-arm adapted tobe locked in said head, and lockmembers each having an operating handle, said handles cooperating and serving to guide the last recited arm intoposition to be locked.

12. In a stanchion, a head, a stanchionarm to which it is secured, a stanchion-arm adapted to be locked in the head, and lock members having divergent handles which cooperate to serve as guides for one of the stanchion-arms.

13. In a stanchion, a head, a stanchionarm to which it is secured, a stanchion-arm adapted to be locked in the head, and armguiding handles having portions which serve as locks for the last recited stanchionarm, pivoted in the head.

1%. The combination with coacting stanchion-arms, of a head secured to one of them, and a pair of coacting locking members arranged in said head, each o-i said locking-members having a handle adapted to guide one of the stanchion-arms into the head.

15. The combination with coacting stanchion-arms, of a head secured to one of them, a pair of coacting locking members pivoted in said head, each locking member having a handle adapted to guide one of the stanchion'arms into said head, and springs adapted to hold the locking members in engagement with the guided stanchion arm.

16. In combination, a head having a channel, a stanchion-arm to which the head is secured, a stanchion-arm one end of which is hingedly connected with the above recited arm, its other end adapted to pass into said channel, and a pair of stanchion-armguiding handles pivotally connected with the head, operating through a slot therein, crossing said channel, and each adapted to engage and lock the second recited stanchion-arm in said head.

17. Combined in a stanchion, a head having a transversely arranged slot, a stanchion-arm to which it is secured, a stanchion-arm flexibly connected at one of its ends to the arm above recited and having near its other end a cutaway portion whereby a shoulder is provided, and locking elements pivoted to said head and movable through said slot, one of them overlying the other, and each adapted to engage said shoulder.

In testimony that I claim the preceding as my invention I hereto sign my name.

ALFRED W. KNUTSON.

by addressing the Commissioner of Patents, 0. 

